calibration square calculation

This is my version of a calibration print to replace the calibration cube. A calibration cube does not factor in horizontal expansion of a 3d print so hole to hole spacing can be off when printing based on a simple calibration cube. This print requires you to measure hole to hole distance and hole size along with overall dimensions to figure out the proper steps per millimeter for your printer. Once you have the hole to hole spacing correct, and the horizontal expansion adjustment figured out then you can print very accurately LBRY Tags: calibration cube; 3d printing; calibration